Bulletin of the Chemical Society of Japan p. 1647 - 1651 (1980)
Update date:2022-08-04
Topics:
Morita, Tadayoshi
Fujita, Taira
Takase, Kahei
The reaction of diethyl 2-chloroazulene-1,3-dicarboxylate (1a) with lithium acetylide in liq ammonia gave diethyl 4- and 6-ethynylazulene-1,3-dicarboxylates by an abnormal substitution reaction.In a similar manner, some 2-chloroazulenes, possessing alkoxy
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